<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>商品详情</title>
    <link href="static/assets/global/plugins/bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css">
    <link href="static/assets/global/css/components.css" rel="stylesheet" type="text/css">
    <link href="static/assets/admin/pages/css/login.css" rel="stylesheet" type="text/css">
</head>
<body class="login">
<div class="content">
    <h3 class="form-title">商品详情</h3>

    <div id="promoStartDateContainer" class="form-group">
        <label style="color: blue" id="promoStatus" class="control-label"></label>
        <div>
            <label style="color: red" class="control-label" id="promoStartDate"></label>
        </div>
    </div>

    <div class="form-group">
        <div>
            <label class="control-label" id="title"></label>
        </div>
    </div>

    <div class="form-group">
        <label class="control-label">商品描述</label>
        <div>
            <label class="control-label" id="description"></label>
        </div>
    </div>

    <div id="normalPriceContainer" class="form-group">
        <label class="control-label">价格</label>
        <div>
            <label class="control-label" id="price"></label>
        </div>
    </div>

    <div id="promoPriceContainer" class="form-group">
        <label style="color: red" class="control-label">秒杀价格</label>
        <div>
            <label style="color: red" class="control-label" id="promoPrice"></label>
        </div>
    </div>

    <div class="form-group">
        <div>
            <img style="width: 200px;height: auto" id="imgUrl"/>
        </div>
    </div>

    <div class="form-group">
        <label class="control-label">库存</label>
        <div>
            <label class="control-label" id="stock"></label>
        </div>
    </div>

    <div class="form-group">
        <label class="control-label">销量</label>
        <div>
            <label class="control-label" id="sales"></label>
        </div>
    </div>

    <div class="form-actions">
        <button class="btn blue" id="createOrder" type="submit">下单</button>
    </div>

</div>
</body>

<script src="static/assets/global/plugins/jquery-1.11.0.min.js" type="text/javascript"></script>
<script>

    var g_itemVO = {};

    jQuery(document).ready(function () {

        $.ajax({
            type:"GET",
            url:"http://localhost:8000/item/get",
            data:{
                "id":getParam("id")
            },
            xhrFields: {withCredentials: true},
            success:function (data) {
                if(data.status === "success"){
                    g_itemVO = data.data;
                    reloadDom();
                    setInterval(reloadDom, 1000);
                } else {
                    alert("获取商品信息失败，原因为" + data.msg);
                }
            },
            error:function (data) {
                alert("获取商品信息失败，原因为" + data.msg);
            }
        });
        return false;
    });

    $("#createOrder").on("click", function () {
        $.ajax({
            type: "POST",
            url: "http://localhost:8000/order/createOrder",
            contentType: "application/x-www-form-urlencoded",
            data:{
                "itemId":g_itemVO.id,
                "amount":1,
                "promoId":g_itemVO.promoId
            },
            xhrFields:{
                withCredentials:true
            },
            success:function (data) {
                if(data.status === "success"){
                    alert("下单成功");
                    window.location.reload();
                } else {
                    alert("下单失败，原因为" + data.msg);
                    if(data.code === 20003){
                        window.location.href="login.html";
                    }
                }
            },
            error:function (data) {
                alert("下单失败，原因为" + data.msg);
            }
        })
    });

    function getParam(paramName) {
        var paramValue = "", isFound = !1;
        if (this.location.search.indexOf("?") === 0 && this.location.search.indexOf("=") > 1) {
            arrSource = unescape(this.location.search).substring(1, this.location.search.length).split("&"), i = 0;
            while (i < arrSource.length && !isFound)
                arrSource[i].indexOf("=") > 0 && arrSource[i].split("=")[0].toLowerCase() == paramName.toLowerCase() && (paramValue = arrSource[i].split("=")[1], isFound = !0), i++
        }
        return paramValue == "" && (paramValue = null), paramValue
    }
    
    function reloadDom() {
        $("#title").text(g_itemVO.title);
        $("#imgUrl").attr("src", g_itemVO.imgUrl);
        $("#description").text(g_itemVO.description);
        $("#price").text(g_itemVO.price);
        $("#stock").text(g_itemVO.stock);
        $("#sales").text(g_itemVO.sales);
        if(g_itemVO.promoStatus === 1){

            var startTime = g_itemVO.startDate.replace(new RegExp("-", "gm"), "/");
            startTime = (new Date(startTime)).getTime();
            var nowTime = Date.parse(new Date());
            var delta = (startTime - nowTime) / 1000;

            if(delta <= 0){
                g_itemVO.promoStatus = 2;
                reloadDom();
            }

            $("#promoStartDate").text("秒杀活动将于: " + g_itemVO.startDate + "开始 倒计时" + delta + "秒");
            $("#promoPrice").text(g_itemVO.promoPrice);

            $("#createOrder").attr("disabled", true);
        } else if(g_itemVO.promoStatus === 2){
            $("#promoStartDate").text("秒杀活动进行中");
            $("#promoPrice").text(g_itemVO.promoPrice);

            $("#createOrder").attr("disabled", false);
            $("#normalPriceContainer").hide();
        }
    }
    
</script>
</html>